Heliotrope Thermal

Heliotrope Thermal is a successor to Heliotrope General, a pioneer and leader in the design of differential thermostats for the solar energy industry since 1973.

The founder Sam Dawson created a lasting name for product innovation and reliability. The solar energy industry has also known him for exceptional service.

The current products represent the accumulation and latest generation of a long line of inventions. They have been successfully installed in uncounted solar heating systems in the U.S. and abroad. As essential components of these systems, they assure their automatic operation for long life and high performance of the entire installation.

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> Controllers, Sensors, Electronic controls, parts

DTT-84 Differential Temperature Controller

DTT-94 Differential Temperature Controller with line chord

FS-5 Freeze Snap Sensor

SAS-10 Sensor

SAS-3K Sensor